Home / 1,396.20-2,084.19-1,294.86

Finding the Fourth Proportional to 1,396.20, 2,084.19 and 1,294.86

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Solution

The fourth proportional to 1,396.20, 2,084.19 and 1,294.86 is: 1,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.20 : 2,084.19 = 1,294.86 : x
  2. Step 2: Convert to fraction form
    1,396.20/2,084.19 = 1,294.86/x
  3. Step 3: Cross multiply
    1,396.20x = 2,084.19 × 1,294.86
  4. Step 4: Simplify right side
    1,396.20x = 2,698,734.26
  5. Step 5: Solve for x
    x = 2,698,734.26/1,396.20
  6. Step 6: Final answer
    x = 1,932.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.